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https://issues.apache.org/jira/browse/CASSANDRA-7186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14233119#comment-14233119
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Philip Thompson commented on CASSANDRA-7186:
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When you say it reproduces on your test clusters, are those also under heavy
load? Can I see an example yaml of one of your nodes that is having the problem
(IP's, etc. stripped out), as well as the system log? I'm hoping there is
something there that helps me reproduce the situation.
Until then, I'm going to try reproducing on a cluster that is overloaded rather
than just highly stressed under the assumption this is related to high-load
scenarios.
> alter table add column not always propogating
> ---------------------------------------------
>
> Key: CASSANDRA-7186
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7186
> Project: Cassandra
> Issue Type: Bug
> Reporter: Martin Meyer
> Assignee: Philip Thompson
> Fix For: 2.0.12
>
>
> I've been many times in Cassandra 2.0.6 that adding columns to existing
> tables seems to not fully propagate to our entire cluster. We add an extra
> column to various tables maybe 0-2 times a week, and so far many of these
> ALTERs have resulted in at least one node showing the old table description a
> pretty long time (~30 mins) after the original ALTER command was issued.
> We originally identified this issue when a connected clients would complain
> that a column it issued a SELECT for wasn't a known column, at which point we
> have to ask each node to describe the most recently altered table. One of
> them will not know about the newly added field. Issuing the original ALTER
> statement on that node makes everything work correctly.
> We have seen this issue on multiple tables (we don't always alter the same
> one). It has affected various nodes in the cluster (not always the same one
> is not getting the mutation propagated). No new nodes have been added to the
> cluster recently. All nodes are homogenous (hardware and software), running
> 2.0.6. We don't see any particular errors or exceptions on the node that
> didn't get the schema update, only the later error from a Java client about
> asking for an unknown column in a SELECT. We have to check each node manually
> to find the offender. The tables he have seen this on are under fairly heavy
> read and write load, but we haven't altered any tables that are not, so that
> might not be important.
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